Neil deGrasse Tyson Rejects Pluto Planethood Proposal on 'Colbert'
Monday, March 20, 2017 - 13:31
in Astronomy & Space
Scientists from the New Horizons mission to Pluto are making their case that the dwarf planet should be considered a planet again — and science popularizer and "Cosmos" host Neil deGrasse Tyson came out vehemently against them on late-night television.